28449009

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{7691}}^1$

素因数の和:7837

約数の個数: 16

約数和(自身を含む): 42459840

約数和(自身を除く): 14010831

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 7691, 23073, 69219, 207657, 1053667, 3161001, 9483003, 28449009]

約数ペア:

[(1, 28449009), (3, 9483003), (9, 3161001), (27, 1053667), (137, 207657), (411, 69219), (1233, 23073), (3699, 7691)]